Wills Wing Ultra Sport 135, Owner'S Service Manual

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cause this pulley to bind. Check the routing of the VG rope around the keel mounted base bracket pulley.
Unzip the center zipper and check that the routing of all VG ropes and pulleys is clear and straight.
In particular, check that the rope attached to the traveling pulley is not caught under the
crossbar hold down strap, and that the return rope from the nose to the kingpost base
pulley is not wrapped around the triple blocks.
On models equipped with the CAM VG system, it is possible for the VG activation cable
which runs along the leading edge to become caught under the front end of a bottom
surface batten pocket. This is most likely to happen if the bottom surface battens are
installed before the crossbar is tensioned. You should therefore be sure to install the
bottom surface battens only after the crossbar is tensioned. Also, during the preflight,
before cycling the VG system, you should check specifically to see that the VG cables on
each side are not caught under the front of any bottom surface batten pocket.
Check the VG operation - the pull should be light and the return on release should be positive. On the
135 nd 166 with the cam VG system, the VG will not retract all the way when the glider is on the
ground. You can retract it manually by reaching into the double surface and pulling the front triple
block towards the nose.
Check that the front keel pocket is secured to itself with the mating velcro surfaces, and that all VG
cables and ropes are inside the keel pocket.
Whenever you undo the velcro attaching the two sides of the front keel pocket to one
another, you must be sure when reattaching them that the sweep wires are fully inside the
keel pocket. Otherwise the keel pocket can be ripped away from the sail.
Pull back the neoprene protectors and check the control bar apex bracket hardware, including the clevis
pin safeties, the control bar top plug bolts and nuts, and the elbow to apex slider bolt and nut.
Inspect the apex slider to verify that the ears have not been bent in a hard landing, and
that the bottom and side plastic slides are properly in place.
Check the main and backup hang loops
a. Check that the longitudinal CG track adjustment pin is secure and that the safety ring in is good condition.
b. Pull down firmly on the main loop and make sure that the webbing is not caught on the edge of the
keel CG track.
c. Check that the backup is properly positioned between the VG pulley mount and CG track and does
not interfere with the main kingpost hang loop thoughout the pitch range.
d. Check that the VG rope passes inside the main and outside the back-up hang loops.
e. Check the nut on the bolt that attaches the hang loop to the kingpost.
f. Check the clevis pin and safety ring which secure the control bar apex slider in the full aft position.
On newer gliders, verify that the spring loaded apex slider lock is engaged in the slider assembly.